Conference paper

Highly accurate measurements of temperature and strain-dependence of Brillouin gain in single-mode fibres

Distributed Brillouin gain measurements along single mode fibres have demonstrated their potentiality for local temperature sensing and monitoring strains experienced by optical fibres. The results of such measurements is directly related to the acoustic properties of the fibre medium that are temperature- and strain-dependent. The Brillouin gain spectrum (BGS) is classically measured by launching a highly coherent pump lightwave into a test fibre and by observing the amplification of a weak probe signal propagating in the backward direction

    Keywords: Brillouin spectra ; deformation ; measurement errors ; optical fibre testing ; optical pumping ; strain measurement ; temperature measurement


    Metrology Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland, 5285978, optical fibre testing, accurate measurements, strain-dependence, Brillouin gain, single-mode fibres, temperature measurements, local temperature sensing, strain monitoring, strain measurement, Brillouin gain spectrum, highly coherent pump lightwave, test fibre, backward propagating weak probe signal amplification


    • THEVE-CONF-1995-001

    Record created on 2008-09-29, modified on 2017-05-10

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